ULPOWER UL260i - Engine performance; Performance graphs for standard conditions (ISA)

Operating Manual ULPOWER UL260i UL260iF UL260iS UL260iSA
MO 260A01 Revision No: 6 Date: 2014-09-15 Page: 11 of 22
General operating limits
Speed
Max. engine speed ...................... 3300 rpm
Recommended prop speed ............ 2400 - 2800 rpm
Normal idle speed ....................... 850 rpm
Min. idle speed .......................... 700 rpm
Running in
To run in a new engine, it is recommended to limit the speed at 3000 rpm for the first 5 hours.
Performance (ISA)
a) UL 260i Maximum (for 5 minutes) : 97 hp @ 3300 Rpm
Maximum continuous power : 87 hp @ 2800 Rpm
b) UL 260is Maximum (for 5 minutes) : 107 hp @ 3300 Rpm
Maximum continuous power : 95 hp @ 2800 Rpm
Acceleration
Limit of engine operation at zero gravity and in negative "g" conditions
Max. ....................................... 3 seconds at max. –0.5 g
Oil pressure
Max. ....................................... 8 bar (115.0 psi) (cold start)
Normal .................................... 2–5 bar (30–75 psi) — above 2000 rpm
Min. ........................................ 1 bar (14,5 psi) — below 2000 rpm/above 900 rpm
Oil level
Max. ....................................... 3,5 litres (3,7 quarts)
Min. ........................................ 2,5 litres (2,6 quarts)
Oil temperature
Max. ....................................... 120°C (248°F)
Min. ........................................ 50°C (122°F)
Normal .................................... 80-100°C (175-212°F)
Cylinder head temperature
Max. ....................................... 190°C (375°F)
Max. continuous ......................... 160°C (320°F)
Min. ........................................ 50°C (125°F)